<template>
    <div>
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>权限管理</el-breadcrumb-item>
            <el-breadcrumb-item>角色列表</el-breadcrumb-item>
        </el-breadcrumb>
        <el-card>
            <el-row>
                <el-col>
                    <el-button type="primary">添加角色</el-button>
                </el-col>
            </el-row>
            <el-table :data="roleList" border stripe>
                <el-table-column type="expand">
                    <template slot-scope="scope">
                        <el-row :class="['bdbottom', i1 === 0 ? 'bdtop' : '', 'vcenter']"
                            v-for="(item1, i1) in scope.row.children" :key="item1.id">
                            <el-col :span="5">
                                <el-tag closable @close="removeRightById(scope.row, item1.id)">{{
                                    item1.authName
                                }}</el-tag>
                                <i class="el-icon-caret-right"></i>
                            </el-col>
                            <el-col :span="19">
                                <el-row :class="[i2 === 0 ? '' : 'bdtop', 'vcenter']"
                                    v-for="(item2, i2) in item1.children" :key="item2.id">
                                    <el-col :span="6">
                                        <el-tag type="success" closable @close="removeRightById(scope.row, item2.id)">{{
                                            item2.authName
                                        }}</el-tag>
                                        <i class="el-icon-caret-right"></i>
                                    </el-col>
                                    <el-col :span="18">
                                        <el-tag type="warning" v-for="(item3, i3) in item2.children" :key="item3.id"
                                            closable @close="removeRightById(scope.row, item3.id)">
                                            {{ item3.authName }}</el-tag>
                                    </el-col>
                                </el-row>
                            </el-col>
                        </el-row>
                    </template>
                </el-table-column>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="角色名称" prop="roleName"></el-table-column>
                <el-table-column label="角色描述" prop="roleDesc"></el-table-column>
                <el-table-column label="操作" width="300px">
                    <template slot-scope="scope">
                        <el-button type="primary" icon="el-icon-search" size="mini" @showEditDialog(scope.row)>编辑</el-button>
                        <el-button type="danger" icon="el-icon-delete" size="mini">删除</el-button>
                        <el-button type="warning" @click="showSetRightDialog(scope.row)" icon="el-icon-setting"
                            size="mini">分配权限</el-button>
                    </template>
                </el-table-column>
            </el-table>
        </el-card>
        <el-dialog title="分配权限" :visible.sync="setRightDialogVisible" width="50%">
             <el-tree :data="rightList" :props="treeProps" show-checkbox node-key="id" 
             default-expand-all :default-checked-key="defKeys" ref="treeRef"></el-tree> 
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRightDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="allotRights" >确 定</el-button>
            </span>
        </el-dialog>
        

    <el-dialog title="修改角色信息" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
      <el-form :model="editForm" :rules="editFormRoules" ref="editFormRel" label-width="70px">
        <el-form-item label="角色名称">
          <el-input v-model="editForm.roleName" disabled></el-input>
        </el-form-item>
        <el-form-item label="角色描述" prop="roleDesc">
          <el-input v-model="editForm.roleDesc"></el-input>
        </el-form-item>

      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="">确 定</el-button>
      </span>
    </el-dialog>
    </div>
</template>

<script>
export default {
    data() {
        return {
            roleList: [],
            setRightDialogVisible: false,
            rightList: [],
            treeProps: {
               label: 'authName',
               children: 'children'    
            },
            roleId: '',
            defKeys: [],
            editDialogVisible: false,
            editForm: {
                roleName: '',
                roleScribe: ''
            },
            editFormRoules: {
                roleName: [
                { required: true, message: '请输入角色名称', trigger: 'blur' },
                {
                    min: 3,
                    max: 6,
                    message: '角色名称字符长度应在3~6之间',
                    trigger: 'blur'
                }
                ],
                roleScribe: [
                { required: true, message: '请输入角色描述', trigger: 'blur' },
                {
                    min: 3,
                    max: 6,
                    message: '角色描述字符长度应在3~6之间',
                    trigger: 'blur'
                } 
                ]
            },
            
        }
    },
    created() {
        this.getRolesList();
    },
    methods: {
        async getRolesList() {
            const { data: res } = await this.$http.get('/api/private/v1/roles');
            if (res.meta.status !== 200) {
                return this.$message.error("获取角色列表失败！");
            }
            this.roleList = res.data;
            // console.log(this.roleList);
        },
        async removeRightById(role, rightId) {
            // this.roleId = role.id;
            const confirResult = await this.$confirm('此操作将永久删除该权限, 是否继续?', '提示', {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning' 
            }).catch(err => err);
            if (confirResult !== 'confirm') {
                return this.$message.info('取消删除');
            }
            const { data: res } = await this.$http.delete(`/api/private/v1/roles/${role.id}/rights/${rightId}`);
            if (res.meta.status !== 200) {
                return this.$message.error("删除权限失败！");
            }
            role.children = res.data;
        },
        async showSetRightDialog(role) {
            this.roleId = role.id;
            const { data: res} = await this.$http.get("/api/private/v1/rights/tree");
            
            if(res.meta.status !== 200 ){
                return this.$message.error("分配权限失败！");
            }
            this.rightList = res.data;
            // console.log(this.rightList);
            this.getLeafKeys(role,this.defKeys);
            this.setRightDialogVisible = true;
        },
        async allotRights() {
           const keys = [...this.$refs.treeRef.getCheckedKeys(),
            ...this.$refs.treeRef.getHalfCheckedKeys()
            ];
            // console.log(this.roleId);
            // debugger
            const idStr = keys.join(',');
            const {data: res} = await this.$http.post(`/api/private/v1/roles/${this.roleId}/rights`,{rids:idStr});
            // console.log(res);
            if(res.meta.status !== 200){
                this.$message.error("分配权限失败！");
            }
            this.getRolesList();
            this.$message.success("分配权限成功");
            this.setRightDialogVisible = false;
        },
        getLeafKeys(node, arr)  {
            if( !node.children){
                return arr.push(node.id);
            }
            node.children.forEach(item => this.getLeafKeys(item,arr));
            // console.log(this.defKeys);
        },
        async showEditDialog(id) {
            const { data: res } = await this.$http.get('/api/private/v1/roles'+id);
            if(res.meta.status !== 200 ) {
                return this.$message.error("获取用户角色信息失败");
            }
            this.editForm = res.data;
            this.editDialogVisible = true;
        },
        editDialogClosed() {
            this.$refs.editFormRef.resetFields();

        }
    }

}
</script>

<style>
.el-tag {
    margin: 7px;
}

.bdbottom {
    border-bottom: 1px solid #eee;
}

.bdtop {
    border-top: 1px solid #eee;
}

.vcenter {
    display: flex;
    align-items: center;
}
</style>